Research on micro robot for colonoscopy

Area of Science:

• Biomedical Engineering
• Robotics
• Gastroenterology

Background:

• Current colonoscopy methods can be invasive and uncomfortable for patients.
• There is a need for advanced diagnostic tools for early detection of colon pathologies.
• Bionic principles offer novel approaches for designing medical robots.

Purpose of the Study:

• To design and manufacture an autonomous, earthworm-like robot for colonoscopy.
• To evaluate the robot's locomotion efficiency and navigation capabilities in a simulated colon environment.
• To assess the feasibility of using this robotic system for micro-invasive or non-invasive colon diagnosis.

Main Methods:

• The robot was designed using bionic principles and precision manufacturing.
• It features a flexible, segmented body with two-degree-of-freedom joints.
• Locomotion was driven by an electromagnetic linear driver, with shape memory alloy (SMA) controlling direction and imaging angle.

Main Results:

• In-vitro experiments were conducted using pig colons.
• The micro-robot demonstrated reliable and free autonomous navigation within the colon.
• Locomotion efficiency was carefully analyzed during the experiments.

Conclusions:

• The developed earthworm-like robot prototype shows promise for autonomous colonoscopy.
• Its ability to navigate freely in a colon environment supports its potential clinical utility.
• This technology could advance minimally invasive diagnostic procedures for colon diseases.